I also think that women were told by men that sex was a very casual thing to do, when actually it is a very, very serious thing, who you let enter your body.
I remember reading this paragraph in a spiritual book, it was saying that women used to know how important sex is, mentally, emotionally, spiritually, as well as physically, but in recent times they have forgotten.
The paragraph said "If women knew the amount of energy that was exchanged during sex, they would be very, very careful about who they have sex with"
So for example you should be very choosy not to have sex with some one who has any abusive traits, does drugs, is not taking care of himself, because we will take a lot of energy from that man, if we have sex with them.